Turntable



Sept. 4, 1,923.

HQSCHTTE TURNTABLE Filed Aug. 29. 1921 5 Sheets-Sheet 1 IIIIIIIII..

sept- 4, .1923.

H. SCHUTTE TURNTABLE Filed Aug. 29. 1921 3 Sheets-Sheet 2 l l l l #www 05V MMI-JM Sept. 4, 1923.

H. scHTTE TURNTABLE Filed Aug. 29 1921 3 Sheets-Sheet 3 Patented Sept. 4, 1923.

"narran stair To THE rrmvr or RHEINER 'v TunNTAntE.

Appliariofn med August 29, 1921. serial No. 496,624.

(GRANTED UNDER THE raovisroNs or THE ACT ori/ranma, 1921i, 41' STAT, L., 13713.)-

To all whom t may concern.' l y Be it known that I, HANS, SCHTTE, a c1t1- zen of the Republic ofV Germany, and resident of Rheine, lVestphalia, Germany, have invented certain new' and usefullmprovements in Turntables (for which I have obtained patents as follows: Germany, filed Aug. 1S, 1915, Patent No. 337 ,525; Germany, filed Aug. 21,1915, Patent No, 310,301; Germany, filed Mar. 10, 1916, vPatent No. 306,701+; Austria, filed'Aug, 16, 1918, Patent No. 81,014; Hungary, filedAug. 17, 1918, Patent No.' 74,900; Sweden, filed Aug. 23, 1918, Patent No. 418,983; Belgium, iiled Sept. 10, 1918, Patent No. 273,754, Czechoslovakia., filed Jan. 16,1920, PatentNo. 3,898), of which the following is a specification.v

This application refe-rs to turn-tables and more particularly to such turntable's,=in which the main girders are` divided in the middle of their length above the center-bearing, and an 'important part of the present invention consists in arrangements forl the discharging from stress, ofv thev sheets orI plates, 4which connectfthe halvesfof the girders and inconnecting the middle ends of the main girders unyieldingly to the centerbearing. In the turn-tables with subdi-` vided main-girders, as they. lare known hitherto, those connecting sheets or plates are subjected to considerable combined stresses both in regard to stretching and in regard to bending strain, which take place in consequence of the changes of the load on the turn-table, and especially in consequence of the partial sinking down of the level of the track ofthe platform-rollers; and. in consequence of thosevstrainsV an obnoxiousV lengthening and even a breaking of those sheets` or plates are noty uncommony happen ings.y

In order to overcome those drawbacks, according to the invention the laminated sheet or other combining member-'is 'arrang'g'edy at the lower side ofthe ends of'the girders, which facev eachother; and outside of the theoretical lines vof contact between the girder-bearing support-on the center-bearing and the girder-ends'this sheet turns or bends round the form ofthey girder-ends, whereas within' those lines of `contact it turns or bends round the the aforesaid support. f.

Another featureof the invention consists in arranging on the turn-table horizontal rollers, which bear against an abutment-ring on the center-bearing, so that each half of the turning platform is left free to follow the upor down-movements, which may take place at the outergends. of the turn-table; whilst any edgewise-tiltingmomentum, whichl in consequence of onesided load, may take place vertically to the longitudinal axis yis transferred, withoutv play, to the center-bearing. lBy this arrangementsuch forces. or` strains, as occur'A at the one side only,v are,- neutralized, which forces are caused by differencesl of theload on the same axis, resulting for instance from thepressur@ ofthe winch-which bears considerably against turn-tables arranged' in theo-pen air,

and vwhich pressure ofwindis especially dangerous `to turn-tables'ofl the here-de scribed-kind.,v v

,1A furthenfeature of the present invention consists, therein,that it enables of eight-rollers arranged in pairs at the ends of the main gir-ders to drive-v only one single roller-wheel, whereas hitherto atleast twoA roller-wheels had to bedriven. T'o turn vthe turn-table evenv if it is unloaded, 'by driving .one single roller-wheel only a sufficient bearing-presi sure on this roller-wheel must 4be provided for, and to this eiect the support holding thisrollerwheel is prolonged laterally, and on' this prolongation there hasfbeen placed HAFT, .on nHnrNn, wnsTPHAQ formy of the surface" the'.l driving mechanism, 'which isseparated 1 frornl-the main construction of the turn table. j y In order tojmake the-invention clearly understood a preferred embodimentofit which` Figure 1vv isaside-view or elevation of a turn-table according to the invention y VFigure2 is a top view'corresponding"to Figure-1; v

Figure 3 "fis a vertical crosssection through thecentral part of the turn-table showing nin particular the lateral'supporting or stiflening of the platform;

- .has been illustrated in tthe drawings, in

Figured is side-view of the parts shown in Figure 3 with the above mentioned connecting-plate shown in section;

Figure 5 is a plan-view of the parts shown in Figure 3;

Figure 6 is a side-view, and Figure 7 is a top-view of the arrangement of the rollerwheels and the parts for driving the latter.

As to the illustrated embodiment of the invention 1 and 2 are the main-girders of the turn-table, which are divided at the middle of their length above. the centerbearing 3. The two halves are connected by the laminated plate 4, which is shown in the Figures 1 and 4 to rest or so to say ride on the upper surface of a support 6 which latter is supported by the center? bearing and arrangedfcrosswise to the longitudinal axis of the turn-table and provided with curved or a plane upper surface and with rounded edges. The Figures 3 and 5 show, that the connecting member 4 along the transversal axis of theturn-table by a number of screws, is fixed to the support 6. The two ends of the main-girderhalves 5, which face each other, are provided, in the shown embodiment, with inclined lower flanges, and to the surface of those ianges the flexible connecting-member or plate 4 has been xed by screws, or the like. This connection however must not extend as far as the innermost ends of the girders, but on the contrary it must cease already ina certain distance from the inner ends of the girders, namely outside the possible theoretical line of contact between the support 6 and the girder-ends. The unfastened zone must be provided for, in order to enable the flexible connectingmember or plate 4 to act like an open roller-bearing.

The connecting-member or plate 4 may have any breadth and may consist in a single piece, or it may be as broad as the whole turn-table, or it may be subdivided into several narrower laminae or strips, or it may be arranged one separate sheet or plate below each main-girder, as it is showny in the Figure 3. The connecting-member 4 again could be formed by a plurality of thin sheets or strips placed thev one above the other. In each of those cases the desired result will be obtained with security', namely an unyielding connection of the middle ends of the main girders to the center-bearing and a free movab-ility in vertical direction of the outer ends of the main-v girders.

- In the construction shown in Figure 8 the support 6, byv means of the screws 7 is suspended to the cross-head 7a, which latter, by means of a ball-bearing, supports the turn-table, so as to roll on the center-bearing. The stand of the center-bearing is provided with a horizontal roller-abutment ring 8, against which bear two horizontal rollers 2, fastened to the support 6. By the arrangement of those rollers 9 bearing against the central abutment-ring 8, the middle of the turn-table is kept always securely to its place; and it is made impossible, that foreign bodies come between the abutment-ring 8 and the rollers 9. This arrangement further will take up without any play and transfer to the center-bearing, all one-sided strains, which in consequence of one-sided load on the turn-table arise in the direction vertically to the longitudinal axis of the turn-table.

The Figures 6 and 7 show, that below each main-girder 1 and 2 respectively there is arranged a pair of holders 11 respectively 12 for the roller-wheels. Those holders 11, 12 are connected to the main-girders 1, 2, by means of bolts 13, supported in a bearing beneath the main-girder, which connection allows a certain oscillating of the combination. The arrangement of the roller-wheels 14, 148, 15 on their holders 11, 12 is such, that on each side of each main-girder 1, 2 there is a roller-wheel, which rests on the rail 16 of the track of the turn-table. The one pair of holders 11 is prolonged as indicated at 17, and on this prolongation there rests the means fo-r driving the turn-table, which means may be an electric motor 18. A double toothed-wheel-gearing with shafts 18a, 19 and 20 transfers the rotation fromthe motor 18 to the tooth-gearing 21, which latter drives the roller-wheel 14a. In order to avoid an undesired pressure on the roller-wheel 14a, in consequence of the load of the holders 17 and of the electric motor 18, there'is arranged at the outer ends of those holders 17 an additional supporting wheel 22 which is held, with a certain tension, by the spring 23, so that the pressure on the driving roller-wheel 14L may never exceed the amount, which is needed for the driving of the turn-table, and that an excess of pressure on the rail, on the track and its foundation is avoided with security. The

pressure resulting from the load of `the motor 18 and of the prolongation 17 which is transferred to the holders 11 and from there to the roller-wheel 14a, can be regulated at will by choosing accordingly the length of the prolongation, and by an adjustment of the supporting spring 23, so that always the desired adhesion and friction of the roller-wheel 14a to the rail 16 is obtained, which is needed for the driving of the turn-table.

I claim: Y

1. In a turn-table in combination maingirders, which are divided in the middle of their length above the center-bearing, a center-bearing, a support, arranged turnable on the center-bearing ,and flexible connectingmeans, which are supported by and fastened to the support in a plane, which is perpendicularto the longitudinal axis' of the turnneeaeee table, and which means are fastened to the lower-sides of the central ends of the maingirders, in such a way, that outside of the theoretical line o'l Contact between the support and the girder-ends the connectingmeans will turn round the ends of the girders, Whilst inside of the said theoretical line of Contact the connecting-means will turn round the surface of the support.

2. In a turn-table in combination maingirders, which are divided in the middle of their length above the center-bearing, a center-bearing, a support arranged turnable on the center-bearing, flexible connectingmeans, which lie at their middle-part on the support7 and are fastened thereto and at their outer ends to the central ends 01: the main-girders, and horizontal rollers7 arranged at the lower part of the turnable support and bearing aga-inst the aforesaid center-bearing.

3. In a turn-table in Combination main girders, which are divided in the middle of their length above the center-bearing, a eenter-bearing, a support, arranged turnable on the center-bearing, flexible connecting means, which are fastened at their middle part to the support, and at their outer ends to the central ends of the maingirders, a rollerabutinentring7 arranged horizontally round the lower part oi the center-bearing, and horizontal rollers arranged at the lower part of the turnable support and bearing against the before-mentioned abutmentring.

4. In a turn-table in Combination maingirders, which are divided in the middle of their length above the center-bearing, a eenter-bearing7 a support, arranged turnable on the center-bearing, flexible connectingineans, which lie at their middle part on the afore-said support and are fastened thereto and at their outer ends to the central ends of the main-girders, holders for the roller wheels, subdivided between the main-girders, the holder for the driven wheel being prolonged and carrying the driving means for the roller wheel.

5. In a turn-table in combination maingirders which are divided in the middle of their length above the center-bearing, a eenter-bearing, a. support, arranged turnable on the Cent-er bearing7 flexible connectingmeans, fastened with their outer ends to the Central ends of the main-girders, and with their middle part in a plane transversely to the longitudinal axis of the turntable on the afore-said support7 horizontal rollers arranged at the turn-table in a plane transversally to the longitudinal axis of the turntable, and bearing against the afore-said center-bearing, holders for the roller wheels, subdivided between the main-girders, the holder for the driven-wheel being prolonged and carrying the driving means for the roller wheel.

In testimony whereof ll have signed my name to this specification in the presence of two subscribing witnesses.

HANS SCHTTE.

Witnesses FRITZ FRANKS, HEINRICH HAGEMANN. 

